Bone Cement Volume Planning From CT Bone Density Mapping
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Solution Overview
Problem
Current methods for determining bone cement volume in percutaneous vertebroplasty rely on surgeon experience, leading to inconsistent results and increased risks of leakage and instability due to inadequate or excessive cement injection, necessitating additional invasive procedures.
Innovation Solution
A computer-implemented method using data from bone structure imaging (e.g., CT scans) to determine bone density distribution, identify low-density areas, calculate bone space volume, and adjust cement volume based on simulated bone strength to ensure stability and minimize leakage risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the bone cement volume is determined based on surgeon experience, then the procedure can be performed with simple methods, but the precision of bone cement volume determination is insufficient leading to leakage or instability
Solution Approach 1:
The patent replaces the mechanical/manual method of volume determination (surgeon experience and estimation) with an automated image processing system that calculates bone space volume from CT scan data, thereby improving precision while maintaining procedural simplicity
Solution Approach 2:
The patent creates a virtual copy of the bone structure through image processing of CT scans, allowing precise measurement and calculation of bone space volume without physically measuring the actual bone, thus achieving high precision through digital replication
2Stability of the object's composition
If additional bone screws are used to stabilize the bone, then the stability of the bone is improved, but the number of invasive procedures increases
Solution Approach 1:
The patent performs preliminary calculation of the optimal bone cement volume before the actual injection procedure, ensuring that the correct amount is injected during the first procedure, thereby eliminating the need for subsequent invasive stabilization procedures
Solution Approach 2:
The system enables the bone structure to receive the precise amount of cement it needs based on its own anatomical characteristics (bone space volume calculation), allowing the bone itself to dictate the required treatment volume without external estimation or additional procedures
Data Source
AI summary
The disclosure relates to a computer-implemented method for determination of a bone cement volume of a bone cement for a percutaneous vertebroplasty, which reduces complications due to the information provided by the method. The computer-implemented method includes: reading in or receiving data about a bone structure of a bone section; determining a bone density distribution of the bone section depending on the data; determining a bone space in the bone section depending on the determined bone density distribution, wherein a bone density of the bone space is less than a predetermined density threshold value; determining a bone space volume of the determined bone space; and determining and outputting the bone cement volume depending on the determined bone space volume.